Air circulation unit for refrigerated case



FIG. 1 is a perspective view of an air circulation unit for refrigerated cases showing our new design, the broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is an enlarged front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side view taken from the left of FIG. 1;

FIG. 5 is a side view taken from the right of FIG. 1;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for an air circulation unit for refrigerated cases, as shown and described. 